Barthod



July l0, 1956 E. BARTHoD MULTIPLE-ACTION HIGH PRESSURE EJECTING DEVICE Filed Jan. 14. 1953 United States PatentO MULTWLE-ACTION HIGH PRESSURE EJECTNG DEVICE Edouard Barthod, Lyons, France Application January 14, 1953, Serial No. 331,295

The high-pressure projecting devices generally employed only permit of projecting a jet of liquid under pressure or of atomised liquid. Such projecting devices are employed, for example, for general cleaning by means of water.

Other projecting devices are specially designed to produce jets of water or of various liquids. Others again are constructed to give only an atomised jet formed of a mixture of water and of chemical product. Such devices are employed, for example, for the treatment of disease in fruit trees.

The present invention concerns a multiple-action highpressure projecting device, which may be employed alone for the rapid performance of cleaning or polishing work and treatments of all kinds.

According to my invention the water supplied under very high pressure issues into a duct, in the path of which there are disposed two valves controlling two pipes issuing parallel to one another from the projector body and leading into a common end cap, one of the said pipes permitting the emission of a sharp jet and the other the emission of a mist-like jet of adjustable strength, while an auxiliary liquid, such as a polishing liquid, a disinfectant, an insecticide or the like, may at will be intimately mixed with the jet, due to the suction of this liquid through the tube for the emission of the sharp jet, by a hydro-ejector system formed within the end cap of the projecting device, the said auxiliary liquid beingfed to the projector body through an independent pipe leading into the tube for the emission of the sharp jet, which pipe is provided with a non-return system preventing the passage of the high-pressure water into the said pipe.

In another embodiment of the projecting device according to the present invention, the calibrated capsule which closes the end of the barrel and comprises the outlet orice has mounted thereon a plug which forms a guide nose and adapts itself to the form of the said capsule, the said plug being separated from the said capsule.

by an annular space forming a hydro-ejector and into which there leads a duct supplying an auxiliary liquid, a cock being provided in the said duct, so that when the cock is open and the projecting device is in operation the said auxiliary liquid is atomised under very high pressure and consequently has a very vigorous action, although not having been supplied by the pump which feeds the projecting device, whereby damage to the latter is avoided.

Accompanying drawings illustrate by way of example a preferred embodiment of my invention. In said drawings:

j, 2,754,153 PatentedV July. 1 0, 1 956 Fig. 1 is a vertical sectional view through a plane of symmetry of said embodiment;

Fg. 2 is a transverse cross-section through line II-II of Fig. 1.

As shown in said Figures l and 2, the body 1 of the projecting device defines a channel having two outlets and which comprises at its rear lower end an inlet or internally threaded orice into which there is screwed a tube 2, to the end of which there is in turn screwed the highpressure water feed pipe. Mounted on the said tube 2 is a shut-oil grip 3 held fast on the body 1 of the projecting device by a nut 4.

Provided in the body 1 of the projecting device are two internal pipes 5 and 6 respectively, into the former of which the high-pressure water feed pipe leads through the tube 2.

The pipe 6 is disposed horizontally in the upper part of the body of the projecting device and extends entirely across the said body.

A tube 7 provided with cross pieces 8 for straightening the flow of the stream of liquid is secured to the end of the upper part of the body 1 of the projecting device through the intermediary of a detachable nipple 9 screwed in a threaded aperture in the body 1 in alignment with the aid of the inner pipe 6.

The body of the projecting device is provided at its left-hand upper end with a needle valve intended to control the sharp jet from the projecting device. The said valve comprises a free needle 10 bearing on a seat 12 at one channel outlet screwed in a threaded aperture in the body of the projecting device in alignment with the axis of the inner pipe 6. The said free needle 10 is controlled by a needle body 13 screwed in the valve body. The fluid-tightness is afforded by a stuiing box 14, the needle being controlled with the aid of the shut-olf button 15.

Disposed perpendicularly to the general axis of the projecting device in the second channel outlet in the lower forward part of the body 1 thereof is a needle valve 16 identical to that hereinbefore described and controlled by a shut-olf button 16a. The said needle valve 16 permits of controlling the mist jet from the projecting device.

It is to be noted that the inner pipe 5 provided in the body 1 of the projecting device permits the distribution of the high-pressure water to the two needle valves 10 and 16, that is to say, with a View to the emission of the mist jet and of the sharp jet respectively.

At its right-hand end, the tube 7 intended for the emission of the sharp jet comprises a terminal cone 17 and a capsule 18 having a central orifice, as well as a conical plug 19 having two opposite grooves 21, and an outlet nozzle 22 externally threaded at its end to receive when required a screw cap 23. The said cap 23 permits the atomisation of pure polishing product. The assembly of elements comprising the capsule 18, the conical plug 19 and the outlet nozzle 22 is centred and locked at the endV of the tube 7 by an end cap 24 which has on its lower end a threaded stud, on which the screw cap 23 is screwed when it is not in use.

The body 1 carries parallel to the tube 7 a tube 25 l disposed below the said body. The said tube 25 is secured to the body of the projecting device through the intermediary of a welded nipple 26 screwed in the said body. The said tube Z5 leads at one end into a chamber 3 27 formed in the body of the projecting device downstream of Vthe needle valve v16, and at the other end into the end cap 24. The fluid-tightness is afforded by a stuing box 28.

It will thus be appreciated that the high-pressure water arriving through the tube 2 in the inner pipe 5 can be directed to the outside either solely through the tube 7 by opening of the needle valve 10, or solely through the tube 25 by opening of 4the needle valve 16, or again simultaneously through the two tubes 7 and 25 by more or less partial opening of these two valves.

The auxiliaryliquidsuch as apolishing or-.other liquid is fed through the pipe 29 fitted on a channelled nipple 31 screwed inalateral .boss onthe'bodyfof the projecting device. The said channelled nipple 31 locks in its recess theseatZ-receivingthe ball 33 7intended for the adjustable closing nand opening of vthe inlet for the auxiliary liquid. Thesaid .ball also performs the function of a nonrctum device .forfthe high-pressure water, as will hereinafter be explained. The said ball is controlled in its movement by lthe rod 34 screwedin the body 35 .and is ycontrolled with theaid of-theshut-.off button 36, fluid-tightness being afforded by a stuffing box 37.

After having passed beyond the seat 32, the auxiliary liquid enters vthe right-angled duct 38 if vthe ball 33 is not forced against the seat 32. The duct 38 is in constant communication with the tube 7 intended for the emissionofthe sharp jet.

'Itis to be noted that the plug 19 fitted to the tube 7 at the end of the calibrated capsule 1.8.by which the. end of this tube is closed, comprises two opposite converging grooves 21 intended to form the mist jet bybreaking up the twojets leaving the grooves. The said plug simultaneously acts as a hydro-ejector acting on the central orifice throughV which the chemical. liquid tobe projected arrives. The sharp jet of. high-pressure water can arrive through' the same orifice.

Itis also possibleto combine the sharp jet issuing from thetube y7 andthe rnisty jet issuing from the tube 25 in orderto increase the power vof 'the'latten In any case, itis unnecessary toclose the button 36 controlling the auxliaryliquid valve because the pressure of the water filling theinnerpipe'S forces the ball 33 onto its seat 32,1thus automatically stopping the arrival of the detergent. y

'l'hisfhigh-pressure projecting device has the following main advantages:

The'auxiliary liquid'isatomised under very highpressure and consequently has a very vigorous actionl although not having been supplied by the pump by which the projectingdeviceis'fed, whereby damage to the saidfpump is avoided;

Theprojecting device is self-cleaning, since when the auxiliary liquid has passed through the tube 7 for the sharp jet, it is sufficient to open the valve `controlling the latter.` in order'to'cleanthe ducts completely by the pure water under high-pressure which passes therethrough;

The non-return system for the water under pressure comprises the free ball 33 disposed in such manner that thehigh-pressure water'forces the said ball on to its seat as soon as the valve for the sharp, jet is opened, whereby any passage of the water under pressure into the feed duct for the auxiliary liquid is rendered impossible;

'The supply of auxiliary liquid is automatic, the ball rising automatically under the action of the suction createdy bythehydro-ejector system hereinbefore described;

The quantity of auxiliary liquid projected is readilyadjustablc by. adjustmentiof-.the lift of the ball 33` by means f olf.the.ball.-33 bymeans of the; rod 34,'rthe1en`d'of which bears against the said ball;

lhere` ismounted-onLthe:nose ;of..the projecting ldevice the xmalldetaehable-screw cap.;23 by means .ofxwhich the l pure auxiliary liquid arriving through the centre aperture in the capsule 18 can be atomised;

It is possible without any difficulty to open both the sharp jet valve and the mist jet valve and thus to obtain a mist jet of variable power.

The projecting device according to the invention thus permits of obtaining as required.

A powerful and well calibrated jet of cutting water, of predetermined rate of iiow and pressure for each use;

A spray jet under pressure, of adjustable power, finely atomi sed and copious, in pencil form;

An adjustable mixture of these two jets;

A spray jet under pressure, of adjustable power, with an addition of detergent, polishing, insecticidal, antiseptic or other liquids;

An atomised jet of any liquid.

By means of the vspray .jet of pure water, it is possible to wet, meisten, rinse, etc.

By means yof the atomised jetwith mixing of various products by means ofthe hydro-ejector system, it is possible:

To clean any desired articles, for example coachwork of vehicles, containers, tanks, oors, walls, various machines, etc.,

To project antiseptic or insecticidal liquids of finely atomised formgiving a maximum covering.

In thecase of the two projecting devices hereinbefore described,theauxiliary liquid container may be situated at a distance frornfthe projecting device, so that the pressure losses in the pipe are so great that the hydro-ejector effectmay not be sufficient to produce the suction of the auxiliary liquid to the projecting device. In order to obviate this disadvantage, a separate source of pressure, suchV as adjustable'air pressure, is then employed yto assist the hydro-ejector in its function. The same result couldbe obtained by means of a mechanical, hydraulic or electromechanicaleffect.

I claim:

'1. An implement for-producing a liquid jet comprising a solid body enclosing a channel including an inlet and two outlets, alpipe-rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, van Yadjustable valve controlling each outlet of saidchannel, twopipes carriedby the body andV adapted to'befed respectively by'the two channel outlets under control of the corresponding valves, means for straightening the istream-` of liquid in the first pipe, a terminal nozzlefor-said'iirst'spipe including at least one lateral passageway in'its wall, a chamber connecting the outlet end `ofthe vsecond'pipe vwith said lateral passageway, an

-auxiliary'pipe opening unrestrictedly into the first pipe beyond the-valvegmeans therein, means adapted to feed an'auxiliary liquidinto` said auxiliarypipe and a further valve 'controlling last mentioned auxiliarypipe, the operation-of the differentvalves producing selectively a projection ,of the aqueous liquid under. pressure through either and both first mentioned pipes and the incorporation of the auxiliary `liquid Ainto the liquid under pressure flowing througheither and both first mentioned pipes.

2. An implement for producing a liquid jet compris ing a solid body enclosing a channel including an inlet and two outlets, a p iperigid lwith said body adapted to -feedfan.aqueousgliquid,under pressure to the inlet of said channeL: anwadjustable valve controlling each outlet of `said channel, two vpipesgcarried, by the body and adapted to beffed respectively; bythe two channel outlets under control of thecorresponding valves, means for straightening the :stream ofv liquid in the first pipe, a terminal nozzle for'saidrstpipe including at least one lateral Ypassageway -in yits -wall,-ay chamber connecting the outlet end of the second pipe with said lateral passageway, an auxiliary pipe opening-unrestrictedly into the first pipe beyond the valve therein, Ameans adapted to' feed an auxiliary liquid selected from the group consisting of scouring, disinfectant, insecticidal and bactericidal liquids into said auxiliary pipe and a further valve controlling last mentioned auxiliary pipe, the operation of the different valves producing selectively a projection of the aqueous liquid under pressure through either Aand both first mentioned pipes and the incorporation of the auxiliary liquid into the liquid under pressure flowing through either and both first mentioned pipes.

3. An implement for producing a liquid jet comprisying a solid rbody enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed Ian aqueous liquid under pressure to the inlet of said channel, an adjustable valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively by the two channel outlets under control of the corresponding valves, means for straightening the stream of liquid in the first pipe, an 'auxiliary pipe opening unrestrictedly into the first pipe beyond the valve therein, means adapted to feed an auxiliary liquid into said auxiliary pipe and a further valve controlling last mentioned auxiliary pipe, a system into which the two firs-t mentioned pipes open, operation of the valves providing selectively `at least one of the following jets, a mist jet through the second pipe, a cutting jet through the first pipe, a jet of pure auxiliary liquid through the first pipe and a jet of auxiliary liquid passing through the first pipe and carried along by a stream of aqueous liquid passing through the second of the first mentioned pipes.

4. An implement for producing -a liquid jet comprising a solid body enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, an adjustable needle valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively by the -two channel outlets under control of the corresponding valves, means for straightening the stream of liquid in the first pipe, a terminal nozzle for said first pipe including at least one lateral passageway in its wall, a chamber connecting the outlet end of the second pipe with said lateral passageway, an auxiliary pipe opening unrestrictedly into the first pipe beyond the valve means therein, means adapted to feed an auxiliary liquid into said auxiliary pipe and a further valve controlling last mentioned auxiliary pipe, the operation of the different Valves producing selectively a projection of the aqueous liquid under pressure through either and both first mentioned pipes and the incorporation of the auxiliary liquid into the liquid under pressure flowing through either and both first mentioned pipes.

5. An implement for producing a liquid jet comprising a solid body enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, an adjustable valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively by the two channel outlets under control of the corresponding valve, means for straightening the stream of liquid in the first pipe, a terminal nozzle for the first pipe, the inner end of which has an enlarged cross-section and is provided with grooves at two diametrically opposed points to form obliquely directed fonwardly converging ports, a chamber adapted to connect outwardly said ports with the second pipe, the jet passing through the second pipe, upon opening of the corresponding valve, forming two interengaging jets passing through said ports to produce a flat mist inside the nozzle and beyond same, an auxiliary pipe opening unrestrictedly into the first pipe beyond the valve therein, means adaptedto feed an auxiliary liquid into said auxiliary pipe and a further valve controlling last mentioned auxiliary pipe, the operation of the different valves producing selectively a projection of the aqueous liquid under pressure through either and both first men- `6 tioned pipesand the incorporation of the auxiliary liquid into the liquid under pressure flowing through either and both first mentioned pipes.

6. An implement for producing a liquid jet comprising a solid body enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, an adjustable valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively by the two channel outlets under control of the corresponding Valves, means for straightening the stream of liquid in the first pipe, a terminal nozzle for said first pipe including at least one lateral passageway in its wall, a chamber connecting the outlet end of the second pipe with said la-teral passageway, an auxiliary pipe opening unrestrictedly into the first pipe beyond the valve therein, means adapted to feed an auxiliary liquid into said auxiliary pipe, a non-return ball valve inserted in said auxiliary pipe, a rod projecting through said auxiliary pipe to an adjustable extent and limiting, within a range between zero and a predetermined maximum value, the output of the auxiliary liquid passing through the ball valve, the operation of the different valves producing selectively a projection of the aqueous liquid under pressure through either and both first mentioned pipes and the incorporation of the auxiliary liquid into the liquid under pressure flowing through either and both first mentioned pipes.

7. An implement for producing a liquid jet comprising a solid body enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, an adjustable valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively by the two channel outlets under control of the corresponding valves, means for straightening the stream of liquid in the first pipe, a terminal nozzle for said first pipe including at least one lateral passageway in its wall, a chamber connecting the outlet end of the second pipe with said lateral passageway, an auxiliary pipe opening unrestrictedly into the first pipe beyond the valve therein, means adapted to feed an auxiliary liquid into said auxiliary pipe, a further valve controlling last mentioned auxiliary pipe, and a cap removably fitted over the end of the terminal nozzle and adapted to produce an atomization of the auxiliary liquid when the valve in the first pipe is closed and that in the second of the first mentioned pipes is open, the operation of the different valves producing selectively a projection of the aqueous liquid under pressure through either and both first mentioned pipes and the incorporation of the auxiliary liquid into the liquid under pressure fiowing through either and both first mentioned pipes.

8. An implement for producing a liquid jet comprising a soiid body enclosing a channel including an inlet and two outlets, a pipe rigid with said body adapted to feed an aqueous liquid under pressure to the inlet of said channel, an adjustable needle valve controlling each outlet of said channel, two pipes carried by the body and adapted to be fed respectively oy the two channel outlets under control of the corresponding valves, means for straightening the stream of liquid in the first pipe, a terminal nozzle for the first pipe, the inner end of which has an enlarged cross-section and is provided with grooves at two diametrically opposed points to form obliquely directed forwardly converging ports, a chamber adapted to connect the outside of said ports with the second pipe, the jet passing through the second pipe, upon opening of the corresponding valve, forming two interengaging jets passing through said ports to produce a flat mist inside the nozzle and beyond same, an auxiliary pipe opening unrestrictedly into the first pipe beyond the valve therein, means adapted to feed an auxiliary liquid into said auxiliary pipe, a non-return ball valve inserted in said auxiliary pipe, a rod projecting through said auxiliary pipe to an adjustable extent and limiting, within a range between zero Vand a predetermined maximum value, the output of the auxiliary liquid passing through the ball valve, and a cap removably iitted over the end ofthe terminal nozzle and adapted to produce an atomization of the auxiliary fliquid when the valve in the first pipe is closed and that inthe second of the rst mentioned pipes is open, the operation of the diierent valves producing selectively a projection of the aqueous-liquid under pressure through either and both tirst mentioned pipes and the incorporation of the auxiliary liquid into the liquid under pressure flowing through either and both first mentioned pipes.

References Cited in the Iile of this patent UNITED STATES PATENTS Oliphant Jan. 12, Bramsen et a1. Mar. 17, Pfaff et al. Sept. 15, Hunter Sept. 15, Beach July 5, Downs Apr. 16, Einbecker June 13,

FOREIGN PATENTS Norway Oct. 20, 

